diff --git a/Makefile b/Makefile
index f530598..06312cb 100644
--- a/Makefile
+++ b/Makefile
@@ -9,8 +9,6 @@ REPO=git.rre.nu/jonas
 TITLE=restic with openSSH based on openSUSE Tumpleweed
 DESC=Image containing restic & openSSH, based on openSUSE Tumbleweed
 
-BUILD_TIME := $(shell TZ=UTC date --iso-8601=ns)
-
 SHELL := /bin/bash
 
 default: build